Home / 1,315,186,522.46-1,814,942,951.99-712,342,147.68

Finding the Fourth Proportional to 1,315,186,522.46, 1,814,942,951.99 and 712,342,147.68

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Solution

The fourth proportional to 1,315,186,522.46, 1,814,942,951.99 and 712,342,147.68 is: 983,024,337.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,186,522.46 : 1,814,942,951.99 = 712,342,147.68 : x
  2. Step 2: Convert to fraction form
    1,315,186,522.46/1,814,942,951.99 = 712,342,147.68/x
  3. Step 3: Cross multiply
    1,315,186,522.46x = 1,814,942,951.99 × 712,342,147.68
  4. Step 4: Simplify right side
    1,315,186,522.46x = 1,292,860,360,338,211,328
  5. Step 5: Solve for x
    x = 1,292,860,360,338,211,328/1,315,186,522.46
  6. Step 6: Final answer
    x = 983,024,337.81

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Double scale
Find fourth proportional to 1,315,186,523.46, 1,814,942,953.36 and 712,342,148.68
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.